The Champions League returns to centre stage this week, with Atletico Madrid playing host to Chelsea on Tuesday night in the first leg of their semi-final fixture.
Before Real Madrid face Bayern Munich in the other semi-final decider, Diego Simeone and Jose Mourinho will clash in a titanic, tactical head-to-head which brings with it a throng of intriguing storylines.
In what's sure to be a fixture to remember, you can find all the essential viewing information and match context below.
Date: Tuesday, April 22
Time: 7:45 p.m. BST/2:45 p.m. ET
TV Info: ITV 1 (UK), Fox Sports 1 (US)
It's been a huge topic of controversy in recent weeks, but Atletico Madrid president Enrique Cerezo is confident that his side's star goalkeeper Thibaut Courtois, on loan from Chelsea, will be available for selection on Tuesday.
The Telegraph's Richard Martin quotes the Spanish executive as saying that an agreement should be reached in time for the fixture:
Courtois is a Chelsea player, everyone knows that, he has a contract with them, we have him on loan, and we want him to play in the semis of the Champions League and to stay one more year with us, and that’s what we’re discussing at the moment.
We still don’t know what the result of the negotiation will be but I trust that Chelsea, who are a responsible and classy club, will resolve the situation for the benefit of Atletico, Chelsea and Courtois.
There's no question that the Belgian's involvement promises to have a massive impact on whether or not Los Rojiblancos are able to book a spot in this year's final.
That being said, it would be unfair on Atleti's vast resources to suggest that Courtois decides that fate single-handedly, but the Spaniards undoubtedly stand a far greater chance of advancing with him among their squad.
Simeone vs. Mourinho Part II
Simeone and Mourinho haven't been far removed as direct rivals, considering it was just last season that the pair were clashing in Spanish surroundings, while the latter was still at Real Madrid's helm.
During that time, the pair shared bragging rights between their Madrid rivalry to some extent, with Los Merengues winning both of last season's league encounters, but Atletico arguably getting the more important triumph in their 2012-13 Copa del Rey final.
OptaJoe point out the overall record between these two:
3 - Jose Mourinho won three of his four meetings with Diego Simeone's Atletico Madrid in all competitions when at Real Madrid (L1). History.— OptaJoe (@OptaJoe) April 11, 2014
Simeone now has something of a disadvantage on his hands in that Mourinho is well aware of his tactics, but he has a fairly unknown examination in the shape of Chelsea.
It's a battle of Argentina versus Portugal as the West London giants travel to Spain's capital with two of the most respected strategists in the game right now poised to collide.
Diego Costa vs. John Terry
Although Diego Costa has been extremely impressive in his European exploits this season, Chelsea perhaps pose the toughest defensive examination that Atleti will have faced this season.
Squawka detail just how clinical the Brazilian-born Spaniard has been in Champions League competition:
If the Blues are to be a scrutinising test of Atletico's attacking strength, then John Terry stands to be Costa's biggest obstacle, the closest thing to that cliched "classic, English defender" that he will have faced.
Squawka show that the veteran also poses a stiff attacking threat, too:
Over the last 3 seasons, John Terry has scored 10 headed goals in the EPL – no player has scored more in that time. pic.twitter.com/b8sI2DFlhQ— Squawka Football (@Squawka) April 19, 2014
If Atletico Madrid are to be neutralised, Costa's threat must be restrained, and alongside Gary Cahill, Terry will seek to limit his influence in both the air and closer to the ground in the hopes that Chelsea can take a healthy aggregate scoreline back to Stamford Bridge.